The end-of-life protocol seems effective in realizing adequate patient comfort. Most patients in whom life-sustaining measures are withdrawn are well sedated and show few signs of distress. Dosages of opioids and sedatives increase significantly during treatment withdrawal but do not contribute to time until death. Dying with a minimum of distressing signs is thus practically possible and ethically feasible.

In 83, 7% of patients who die in the mixed ICU life-sustaining treatment is withdrawn. Severe cerebral damage was the leading reason to withdraw life-sustaining treatment.

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Dutch patients who die in the ICU, or die after discharge from the ICU, die after MV and/or VAs are withdrawn. When treatments are withdrawn, death follows within 1 hour in most patients, which is a reflection of the severity of illnesses. At least 80% of patients receive opioids, and 67% receive sedatives until death. Fentanyl is the most used opioid, whereas midazolam is the most used sedative. Dosages of opioids and sedatives did not significantly exceed the ranges described as usual in the international literature.